This 100%. I've never been even slightly tempted even though I'm baffled by the folks who do it and get caught.I never saw anything on my package car that was worth my career.
On a related note: What do you guys do when the package in the EDD isn't in your truck? I message it in every time. Sometimes they message back "package is loaded on truck, 67 pounds, etc." And I have to be like, "no mam, sorry this empty truck is very empty."